---
title: Turn a pizza oven into a Sheet oven 
slug: turn-a-pizza-oven-into-a-sheet-oven-
description: # How to Create Plastic Sheets Using a Pizza Oven and Cardboard/PET Press

This guide will demonstrate the process of making plastic sheets with the aid of a pizza oven and a press designed for cardboard/PET materials.
tags: ["HDPE"]
category: Guides
difficulty: Medium
time: < 1 week
location: Mexico City, Mexico
---
import { Image } from 'astro:assets'
# Turn a pizza oven into a Sheet oven 
<Image src={import('./IMG_20200609_180033.jpg')} alt="Turn a pizza oven into a Sheet oven " />
# How to Create Plastic Sheets Using a Pizza Oven and Cardboard/PET Press

This guide will demonstrate the process of making plastic sheets with the aid of a pizza oven and a press designed for cardboard/PET materials.

User Location: Mexico City, Mexico
## Steps
### Step 1: Refurbishing the oven and PID

We obtained a used pizza oven from a local restaurant at no cost. We sanded, cleaned, and equipped it with a PID controller. The thermometer is centrally located in the oven.


<Image src={import('./IMG_20200603_155219.jpg')} alt="IMG_20200603_155219.jpg" />


<Image src={import('./IMG_20200604_153742.jpg')} alt="IMG_20200604_153742.jpg" />


<Image src={import('./IMG_20200603_170108.jpg')} alt="IMG_20200603_170108.jpg" />

### Step 2: Making the mold 

We constructed a mold using square steel tubes, sized to fit the oven. Alternatively, bread trays can be used.

The key to producing quality sheets lies in this step. We are continually improving our molds; this instance employs available steel.

For future molds:
- Aluminum sheets will be utilized
- A frame will be added to restrain compression width


<Image src={import('./IMG_20200604_122420.jpg')} alt="IMG_20200604_122420.jpg" />

### Step 3: The process I

Apply a thin layer of petroleum jelly to the mold. Then, add approximately 6.6 pounds (3 kg) of shredded HDPE and secure the mold lid.


<Image src={import('./IMG_20200604_122419.jpg')} alt="IMG_20200604_122419.jpg" />


<Image src={import('./IMG_20200604_122826.jpg')} alt="IMG_20200604_122826.jpg" />


<Image src={import('./IMG_20200604_122838.jpg')} alt="IMG_20200604_122838.jpg" />

### Step 4: The process II

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Turn on the oven and set the temperature according to the plastic type. We found 160°C (320°F) effective when measured at the oven's center.


<Image src={import('./IMG_20200603_163541.jpg')} alt="IMG_20200603_163541.jpg" />


<Image src={import('./IMG_20200604_122933.jpg')} alt="IMG_20200604_122933.jpg" />

### Step 5: The process III

Heat for 40-50 minutes, then proceed to the press. We use a press designed for PET and cardboard at the local center.


<Image src={import('./IMG_20200604_115017.jpg')} alt="IMG_20200604_115017.jpg" />


<Image src={import('./IMG_20200604_150447.jpg')} alt="IMG_20200604_150447.jpg" />

### Step 6: The result: Sheets

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<Image src={import('./IMG_20200604_171210.jpg')} alt="IMG_20200604_171210.jpg" />


<Image src={import('./IMG_20200609_180033.jpg')} alt="IMG_20200609_180033.jpg" />


<Image src={import('./IMG_20200611_160946.jpg')} alt="IMG_20200611_160946.jpg" />

### Step 7: If you want to know more

Watch the initial segment of the video to understand its functionality: [youtube.com](https://www.youtube.com/watch?v=gxkcffQD3eQ&t=131s).

### Step 8: Try it yourself

Plastic sheets offer versatility for product creation, commonly utilized after CNC milling. They can also be hand-cut for making boxes, signs, and skateboards. Experiment at home and share your results.


<Image src={import('./IMG_20200605_142311.jpg')} alt="IMG_20200605_142311.jpg" />


<Image src={import('./IMG_20200625_153245.jpg')} alt="IMG_20200625_153245.jpg" />


<Image src={import('./IMG_20200720_142403.jpg')} alt="IMG_20200720_142403.jpg" />